Cement-block machine.



J. F. BERRY '& W. E. BUBRILL. CEMENT BLOCK MACHINE.

APPLICATION FILED JULY 15, 1912.-

1,143,490.- Patented June 15, 1915.

4 SHEETS-SHEET I.

THE NORRIS PETERS CO.. PHOTU-LITHO.. WAQHINGTON. D. l.

J. F. BERRY & W. E. BURRILL.

CEMENT BLOCK MACHINE.

APPLiCATION FILED JULY 15, 1912.

1,143,490 Patented June 15, 1915,

Jjfl Q 4 $HEETs-SHEET 2.

J. F. BERRY & W. E. BURRILL.

CEMENT BLOCK MACHINE.

APPLICATION FILED JULY 15. 1912.

Patented June 15, 1915.

4 SHEETS--SHEET 3.

THE NORRIS PETERS CO.. PHnTc-LITHO.. WASHINGroN. D.

together.

ion

JOHN F. BERRY AND WILLIAM E. BURRILL, or nausea, MAINE,

CEMENT-BLOCK MACHINE.-

nmsaoo.

Patented June 15, 1915.

Application filed July 15, 1912. Serial No. 709,455.

To all whom it may concern Be it known that we, J OHN FRANCIS BERRY and WILLIAM EDMUNDsBnnRILL, citizens of the United States, residing at. Bangor, in

the county of Penobscot and State of Maine,

have invented certain new and useful Improvements in Cement-Block Machines, of whichthe following is a specification.

While we have illustrated our invention as especially adapted for the manufacture of cement blocks from which to form chimneys, it will of course be understood that hollow blocks for anypurpose maybe manufactured with this machine Inthe drawings :.Figure.l is'a frontelevation of a cement block machine, embodying our invention; Fig. 2 is an end elevation; Fig. 3 is atop plan view; Fig. 4 is a section on the line 44, Fig. 3; Fig. 5 is a .section on the line 5.5, Fig. 3;. Fig.6 is a vertical central sectioncof a chimney constructed of blocks formed by our machine;

Fig; 7 is a transverse section ofFig'.) 6; Fig.

8 is-a: top plan view of a modified form of mold; Fig. 9 is a sectional View similar to Fig. 4, showing a modified formof mold, and Fig. 10 is a: sectional view similar to Fig. 5, showing a modified form of mold.

The supporting frame of our machine" by cross with a perforated lug 21, through which a suitable bolt 22 passes to secure the sections Sections 17 andx19f are divided in vertical planes at their angles and the two members of section 19 are connected by hinges 23, so that the halves-of the entire mold may be swung away from or toward each other by opening and closing the mold and facilitating the adjustment of the core.

lVhen closed, the hinging members of the mold are readily secured in position by the positioning pins hereinafter referred to. The mold may have any desired perimeter; for instance, .it may be square, oblong, octagonal, etc. The mold sections are each provided with a bottom ledge 24, from which depends a rim 25, at the bottom of which is i an inwardly extending flange 26, so that when the sections are brought together, there is formed a recess 27 to be hereinafter referred to. j

28. are removable planks constituting part of the platform of the machine on which the inwardly extending flanges 26 rest, thereby supporting the-mold on said planks.

29 are positioning pins secured to the base flange 26 of the mold, to which are pivotally secured links 30, said links being in turn pivotally mounted on the levers 31. These levers 31 are pivotally mounted at one end. in abracket'32 and provided at the otheivend with a handle 33.

34 is a rack bar secured to one of the standards 11 adapted to be engaged bythe lever 31 and support the lever in its adjusted position, whereby the mold box is firmly clamped to the removable planks 28, thus insuring a tight joint between the flange 26 and said planks.

35 is asolid core adapted to be reciprocated in the mold and provided with a stem 36, from which depend links 37, said links being pivotally secured to the lever 38. The lever 38 is pivotally mounted at one end in a hanger 39 secured to the frame, while theforward end ofthe'leveris deflected upwardly as at 40 and terminates in a grip portion 41 which is parallel with the main body of the lever.

42 is a rack bar mounted on one' of the standards 11 adapted to be engaged by the lever 38 and hold the same in an adjusted position, whereby thesolid core 35 is supported in itsposition; A sheet metal core 43 is arranged within the mold around the solld core 35, its lower edge extending to the plane of the upper face of the planks 28 i and resting upon acasting 44secured to the planks 28, wherebywa sharp corner is formed between the core 43 and the flange 26, as

shown in Figs. 4 "and 5. The upper edge of the sheet metal core is bent to form a face 45 and a flange 46 corresponding with the rim 25 and the base flange26 of the mold.

In Figs. 9 and 10, I have shown the mold formed with step-like ledges 47. This design of mold is adapted to form the cap block for the chimney. The interior surface of the mold may be. ornamented to give any desired design to the finished product.

In using the machine to form cement blocks, the parts are assembled as best seen in Figs. 4 and 5, with the mold locked firmly force 48 is now placed in the mold. The desired mixture of cement is now poured between the mold and the sheet metal core and tamped as is usual in forming cement bodies,

thus thoroughly embedding the reinforce in the composition and forcing the composition'to take the shape of the mold. After the cement has set for a while, the solid core 35 is withdrawn from the mold by the lever 38, while the sheet metal core is per-' mitted toremain in the mold until the cement has thoroughly set, after which it is removed.

The depending arm 25 and the base flange 26 of the mold, as stated, form a recess 27 into which the cement composition is forced, thereby forming a tongue 49 on the bottom of the finished product, while the formation of the top of the sheet metal core, as at and 46, forms a depression or recess in the top of the block, so that each completed block is provided with a tongue on its bottom face and a corresponding recess in its top face, whereby when the blocks are brought together in a chimney structure as shown in Fig. 6, the blocks interlock by reason of the tongue of one block projecting into the recess of the other block. Before the blocks are assembled, thin cement is placed in the recess in the top of the block,

after which'the tongue of the next succeed ing block is placed in said recess, the liquid cement thoroughly uniting one block with the'other, thus eliminating all possible danger of fire or smoke passing through the joints between the blocks.

We claim 1. In a cement block machine, the combination with a frame, having a removable platform, of a mold mounted on said frame,

said mold being divided along its diagonal vertical plane into two halves having hinged connection toper'mit the swinging of said halves to remove the block, levers pivoted to said frame and connected to said mold, and locking means for clamping the mold firmly on the platform, a solid core within said mold having a dependingstem, a lever pivotally mounted to the frame and pivotally connected to said stem to control the position of the solid core relative to the mold, said platform being provided with an opening, a liner for said opening, a removable sleeve around said core, said sleeve be ing seated in said liner.

2. In a cement block machine for forming hollow blocks, the combination with a frame having a platform provided with an opening, of a mold formed in sections and having hinges permitting relative swinging of the sections forremoving the block, said mold being provided with an inwardly tapering lower end with an opening in its bottom wall commensuratewith the opening in the platform, links depending from said mold bottom, and levers journa'led on said frame and connected to said links, and locking means for the levers whereby the mold is clamped to the platform, a detachable sheet metal core insaid mold provided with an overhang at. its upper end corresponding 1n shapeto said tapering-end, the lower end of the core extending through the opening in the bottomof the mold and through the opening in :the platform and registering" therewith, a solid movable core extending throughthe openings in said mold and platformand into the sheet metal core, a stem depending from said solid, core, a link dependirfrom and pivotally connected to WILLIAM E. BURRILL.

In presence of two witnesses:

C iARLEs F. SWEET, A. B. SAwY-ER.

Copies otthi: patent may be obtained'for five cents each, by addressing the Go mmiss ioner 0:25am, I

' Washington, D. G. 

